10 , 15

Find the common factors for the numerical part:

10,15

The factors for 10 are all numbers between 1 and 10, which divide 10 evenly.

Check numbers between 1 and 10

Find the factor pairs of 10 where x⋅y=10.

xy11025

List the factors for 10.

1,2,5,10

1,2,5,10

The factors for 15 are all numbers between 1 and 15, which divide 15 evenly.

Check numbers between 1 and 15

Find the factor pairs of 15 where x⋅y=15.

xy11535

List the factors for 15.

1,3,5,15

1,3,5,15

List all the factors for 10,15 to find the common factors.

10: 1,2,5,10

15: 1,3,5,15

The common factors for 10,15 are 1,5.

1,5

The GCF (HCF) of the numerical factors 1,5 is 5.

5

Find the GCF 10 , 15